Ophthalmic mounting



H. H. SCHOTT.

OPHTHALMIC MOUNTING.

APPLICATiON FILED JUNE 23. I919.

1,400,997, Patented Dec. 20, 1921.

Howard fiSc/wif (lttomaq UNITED ST Eff,

HOWARD-H. SCHOTT, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO UNIVERSAL OPTICAL CORPORATION, OF PROVIDENCE, RHODE ISLAND, A CORPORATION OF RHODE ISLAND.

OPHTHALMIC MOUNTING.

T 0 all whom it may concern Be it known that l, HOWARD H. SoHo r'r, a citizen of the United States, and resident of Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Ophthalmic Mountings, of which the following is a specification.

This invention relates to an improvement in ophthalmic mountings and more particularly to a non-metallic rim for a lens frame in such a mounting, thesame being an improvement on co-pending application Serial No. 290,770, filed April 17,1919, and owned by the assignee of the present application, and the object of this present invention is to provide a non-metallic rim of a continuous annular band grooved internally to receive the lens frame, said groove being offset laterally from a medial line through the rim whereby one of the side walls of the groove is formed thinner than that of the other side of the groove to facilitate applying the rim to the frame.

A further object of this invention is to fold the thin side wall of the rim under the thick side wall thereof so as to offset one side of the rim laterally from the plane of its corresponding edge so as to pass around the end pieces on the frame or eye wire.

With these and other objects in view the invention consists of certain novel features of construction, as will be more fully described, and particularly pointed out in the appended claims.

In the accompanying drawings:

Figure 1- is a front View showing my improved rims as applied to a pair of lens frames.

Fig. 2- is an edge view of the lens frame showing my improved non-metallic rims applied thereto.

Fig. 3- is an enlarged sectional elevation showing the general shape of the rim in cross section as. applied to a metallic lens frame.

Fig. 4- shows a section of the rim detached from the frame.

Fig. 5-- shows the rim in section as applied to the frame and having its thin edge folded under its thick edge for the purpose of passing around the end piece on the frame.

Fig. 6- is an edge view illustrating the offsetting or folding under of the thin wall I Specification of Letters Patent.

Patented Dec. 20, 1921.

1919. Serial no. 308,142.

laterally so as to extend around the end pieces on the rim.

= Referring to the drawings, 10 designates the usual metallic lens frame for ophthalmic mountings, which frames are connected together by the usual nose-piece 11 and the opposite outer portions of these frames are usually split as at 12 and these split ends are provided with end pieces 13 which extend laterally out from the frames and serve to provide means whereby the frames may be bound about the lens by means of screws 14:, and also to provide means whereby the temples 15 may be pivotally connected to the frame.

l have provided a rim 16 of shell, Xylonite, celluloid or other suitable non-metallic material and have formed the same of a continuous annular band grooved to receive the lens frame;

It is found in practice that where a deep groove is formed in the ce ter of this nonmetallic rim that in some instances it is difficult to apply the same to a lens frame, that is, to snap the edge of the rim over the frame without excessive stretching and in some cases breaking the rim.

To overcome this difliculty in a simple and practical way I have offset the groove 17 laterally from the medial line through the rim so that its inner side wall 18 will be of less thickness than the outer side wall19 and I have also, to facilitate the positioning of this rim on the frame, lessened the height of the thin wall, that is, the thin edge 20 of this thin wall is of a greater diameter than that of the thick wall whereby the thin wall may not quite cover the inner rear edge of the frame when positioned-thereon, as shown at 21 in Fig. 3.

By this construction it will be noted that I have provided a rim which may be readily snapped over or applied to the lens frame without sacrificing any of the strength of the rim and by this construction it will be seen that the enlargement at the front edge of the frame so cover or hides the rear portion of the rim which may not quite cover the frame, that the uncovered portion is entirely hidden by this front, especially when the mounting is in position on the face of the wearer.

Another feature of this invention is the means by which I extend the rim around the end pieces of the mounting, which construction is best illustrated in F lgs. 5 and 6 whereby instead of notching, cutting away, or removing a portion of the stock of the rim at the polnt where it meets or engages the end pieces, I fold the thin wall of the rim under the thick wall thereof and press the same into shape in heated dies, whereby two essential objects are attained; first, I retain the full strength of the rim atthis point where the rim extends around the end pieces as none of the stock is removed; second, by folding the very thin wall of the rim under the opposite wall thereof the thick or front edge at this point is offset but very slightly from its normal plane being hardly noticeable and without in any way marring the beauty, or the contour of the rim. In fact it is found in practice that the offsetting of this front edge is scarcely noticeable and yet the entire strength ofthe rim is retained. By my improved construction of rim I am enabled to make and sell these rims independent of the eyeglass mounting so that they may be readily applied to any lens frame as they will fit over the ordinary lens frame whose end pieces extend laterally therefrom.

A non-metallic rim of my improved con struction has many advantages over the other rim of this character; first, by =offsetting the groove forming one thin wall therein and making this wall of less height, as measured from the bottom of the groove, than the other wall, this thin and comparatively low wall can be very readily snapped over the rim and into position by the wearer or it may be applied by any Optician; second, a non-metallic rim formed by folding the thin edge or wall of the rim under the opposite wall thereof serves to offset the rim so as to pass or extend around the end pieces of the frame or other projections on the lens frame and that without reducing the strength of the rim. Therefore a rim of my improved construction may be readilyapplied to a lens frame and retain its maxlmum strength and natural beauty of contour and at the same time serves to cover and hide the frame when the mounting is in position on the face of the wearer.

The foregoing description is directed solely toward the construction illustrated, but I desire it to be understood that I reserve the privilege of resortin to all the mechanical changes to which t e device is susceptible, the invention being defined and limited only by the terms of the appended claims.

I claim: v

1. In an ophthalmic lens frame, an inner rim having a lens-receiving groove, a nonmetallic outer rim for said inner rim formed of a continuous annular band internally grooved to receive said inner rim, said groove being offset laterally from a medial line through said outer rim and its rear side wall being thinner than that at the front of said outer rim and said outer rim being shaped to extend around a laterallyextending member on said inner rim.

2. In an ophthalmic lens frame, an inner rim having a lens-receiving groove, a nonmetallic outer rim for said lnner rim formed of a continuous annular band internally grooved "to receive said inner rim, said groove being offset laterally from a medial line therethrough, the side wall of the groove at the rear of said outer rim being thinner and of' less height than that of the side wall at the front of the groove and said outer rim being folded to extend around a laterally-extending member on said inner outer rim.

3. A metallic rim forming a lens frame, a non-metallic rim for said frame formed of a continuous annular band internally grooved to receive said frame, one of the side walls of said groove bein thinner and also of greater diameter at its edge than that of the other side wall, said thinner side Wall being folded under at one point to offset one side of the frame laterally at this point from the plane of the edge thereof to ass around a projecting member on the said metallic rim.

In testimony whereof I afiix my signature.

HOWARD H. SCHOTT.

80 rim without weakening the stock of said 

